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Vacuum temperature controlled (Ceramco firing method)
Vacuum on and off is controlled by temperature.
Rate of temperature rise
When the preset vacuum pressure has been reached, the temperature will rise to the firing
temperature level at the preset rate of temperature rise. Underneath this program section,
the preheating time period will be visibly counted down to zero.
Vacuum time period
When the firing temperature level has been reached, the vacuum time period will start (firing
under vacuum). Underneath this program section, the vacuum time period will be visibly
counted down to zero. On completion of the vacuum time period, the firing chamber will be
ventilated.
Firing time period
The vacuum time period will be followed by the firing time under normal pressure conditions,
that is, without any vacuum pressure being applied. Underneath this program section, the
firing time will be visibly counted down to zero.
Following the end of the firing time, the firing chamber will move into its upper end position.
Firing circle is completed and the start screen will be displayed again. The end of firing will
be indicated by a triple signal tone.
Note: While the firing chamber is heated up vibration noise produced by the heating coil can
be heard for a few seconds.
Tempering (not valid for the test programs)
The tempering position is preset at the factory and equals 50 mm. The temper position and
tempering temperature for other metal bonding ceramics should be obtained from the
representative manufacturers (see 6.14).
Cooling stage (Not included in the test program)
(see 5.5.12)
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